ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,647, issued on June 23, was assigned to Applied Materials Inc. (Santa Clara, Calif.).

"Metalens stack on waveguide combiners for AR/VR glasses" was invented by Jinxin Fu (Fremont, Calif.) and Ludovic Godet (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present application generally relate to augmented reality and virtual reality glasses having stacked lenses. The augmented reality (AR) and virtual reality (VR) glasses includes a pair of lenses retained by a frame. A lens stack is utilized in the pair of lenses. The lens stack may include multiple metasurfaces that improve the focus adjustment for both the real a...